Operating table



1,571,205 A. A. LAURENT OPERATING TABLE' Find Feb. v, 1924 '5 Smets-sheet 1 Feb. 2 1926.

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A.,A. LAURENT OPERATING TABLE piled Feb'. v, 1924 5 Sheets-Sheet 2 /\.A. LAURE/v7.' 4 BY Feb. 2 1926. 1,571,205

A. A. LAURENT OPERATING TABLE l'NvE/vToR.' A. A. LAURE/v7.'

BYWLyM/M ATTORNEYS.

Feb. 2 Q 1926- A. A. LAURENT PERATING TABLE 'Filed Feb. v 5 Sheets-Sheet s ccc INvE/vrok: A. A. LAURE/v7.' BY

@HJ m A rToR/vsvor Patented Feb. 2, i926.

LSTLS ANTONE it.. LAURENT, F MNNEAPOLS, MENNESOTA.

OPERATHTG TABLE.

Application filed February 7, 1924.

To @ZZ fro/iosa it wia-gy conce-rn:

Be it known that Arrroinn A. LAURENT, a citizen oic the United States, residing at Minneapolis, in the county of Hennepin and State ot i nesota, have invented certain new and useiul improvements in @pf-rating Tables, of whien the iollowing is a specilication.

My invention relates to operating tables, and an object is to provide a device of this character tor use by physicians and surgeons which is so constructed that avariety of adjustments can be readily made. An object in particular is to provide adjusting means which can beirireadily operated to tilt the table top or table proper ont of a horizontal position in any direction through an entire circumference ot 360. Other objects are to pro-vide means itor adjusting a Jfoot board, a head rest, and a kidney rest, and for raising and loweringI the table.

The iull objects and advantages of my invention will appear in connection with the detailed description, and the novel features of my inventive idea will be particularly pointed o-ut 'm the claims.

The accompanying drawings which show a practical term in which my invention may be embodied, Fig. l is a view in central vertical section. Fig. 2 is a view in horizontal section on the line 2 2 ot Fig. l looking in the direction of the arrows, and with the lootboard removed. Fig. 23 is a bottom plan view ot the toot board. Fig. 4 is a view in vertical fir-tion on the line 4--4 l. Fig, 5 is a view similar to Fig. 4 showing the table adjusted into a tilted position. Fig. 6 is a view in section on the line 6 6 ot Fig. 2. Fig. 7 is a view in section on the line 7 5( et Fig. 2. Fig. 8 is a view in section on the line 8--8 of Fig. 6. Fig. 9 is a view in horizontal section on the line 9 9 of Fig. 1. Fig. l() is a view in section on the line lO-l() ot' Fig. 9. Fig. 1l is a view in section on the line l1-11 of Fig. l. Fig. 12 is a detail view ot gearing which is employed. Fig. 13 is a detail view in section on the line itl-13 of Fig. 2.

Reerring tothe construction shown in the drawings, l provide a. base member 14 having generally the shape ot the letter i as shown in Fig. 9. One end of the base member is provided .vith two rollers 1G and i8 positioned at the end ot the extended portion 2O while the other extended portion 22 ot the base is provided with a centrally positioned Serial No. 69Il,37.

caster 24 carried by a stem 26 litting slidably in a socket the upper end or' which is closed by a screw cap 28 which when partly unscrewed allows the caster to move up sui iiciently so that rubber feet 30 and car ried by the member 22 rest upon the floor. Mounted centrally on the base is an upwardly extended tube 34 in the upper pertion of which is a fixed nut 36 which yreceives the threads or' a rod 38 which is screwthreaded for the greater portion of its length. rEhe upper portion or this red, however, is not threaded and has secured thereto a bevel gear 40 meshing with a. bevel gear 2 secured to a shaft 44 adapted to be rotated in a manner hereinafter described for raising and lowering the table top. The upper end ot the rod 38 lits rotatably in a soclret carried by the upper end oil a cyindrial member 4G in which the shaft 44 is retatably mounted. rlhe cylindrical member 46 tits slidably within a tube 48 which at its lower end is secured to a ringlilre member 50 whiel'i in turn is secured to the base. Se cured within the lower portion otl the cylindrical member 46 is a plate 52 slidable upon the tube 34. A ring 54 is shrunk upon the upper portion of the member 46 and upon this ring is secured the upper end ot a tube 56 which slidably engages the outer surface or the tube 48. rl`he lower end ot the tube 34 is screw-threaded into a socket member E-which extends throughan opening in the base and is provided with a nut 60 which lirmly but rotatably holds the socket niember in place. This soclretmember has an annular flange 62 which is secured to an annular disk G4 resting in a depressed portion of the base. riihe lower end of the ringlike member 50 is secured to the periphery of the disk 64 and this disk as shown in Figs. 9 and l() is provided with-holes adapted to receive a pin 68 havirO a shank 70 mounted for vertical sliding movement and having a hole in which is received the inner end ot a lever 72 contained in a slot in the base and mounted upon a pivot 7 The outer proliecting end ot the lever 72 is formed to constitute a handle 76 which, when pulled upwardly in opposition to the tension ot a spring 78 causes the pin 88 to be retracted trom the hole 66 so that the dish G4 is 'tree to rotate and the table may then be turned end tor end.

Secured upon the upper end ot the cylinn drical member 46 is a ring member 80 in the wall of which is mounted a shaft 82 to which is secured a. worm gear 8d located in a recess in the ring 8.0. This ring might be integral with the cylindrical member #10 but for convenience in manufacture is made separately and is bolted thereon. rThe gear 81 meshes with teeth formed on the outer surface of an annular member 88 secured to the lower surface of a wedge-shaped ring 90 rotatably mounted upon the ring S0. The upper surface of the rino' 90 is beveled and upon 'this beveled surface is rotatably mounted the corresponding beveled surface of a wedge-shaped ring 92 to the upper surface of which is secured an annular member 9d, the outer surface of which is formed with teeth 90 with which meshes a worin gear 98 secured to a shaft 100 mounted on the wall of a ringlike member 102 which is recessed to receive the gear 98. The tabletop 104: is secured to the ring 102 which has an internally depressed annular flange through which extends a rod 108 having a nut 110 on the upper end thereof. The lower end of the rod 10S is reduced and connected by a universal coupling 112 of well known construction with the upper reduced end of a rod 114 which extends through an annular flange 110 carried by the ring 80. rllhe rod 11d also lentends through the upper end of the cylindrical member 40 andunderneath the latter is prof-.vided with a nut 118. The lower portion of the rod 114 is socketed to receive the upper end of the rod 38. The shaft 82 is connected by a coupling with a telescopic shaft section 122 which at its outer end is connected by a. coupling 124 with a shaft 120 to which is secured a gear 128 in mesh with a gear 130 secured to a shaft 132. The shaft 132 is mounted in projections 134 and 130 eis tending downwardly from the tabletop 101, while the shaft- 120 is mounted in the projection 180. Secured to the shaft 132 is a gear 1518 which meshes with a goa r 110 loose on a sleeve 142 rotatably mounted in the projections 134- and 130 and in a projection 114 extending down from the tabletop 1011. 11s shown in Fig. 0, the gear 1-10 .has an internal keyway adapted to be engaged by a key 1410 having beveled corners. This key is normally held outwardly by a leaf spring 118 and is attached to the end of a rod 150. Keyed on the outer end of the sleeve 142 is a handwheel 152 by means of which this sleeve may be rotated. The hub of the wheel 152 is provided with a recess containing a spring-pressed ball 15aL adapted to engage in any one of a number of notches in the rod and hence serve as a stop to hold the rod 150 in desired position when it is slid in or out. ldlhen the key 140 is engao'ed with the gear 110 as shown in Fig. 0 and the wheel 152 is turned, the train of gears 110, 138, 130, and 128 will cause the shaft 82 to rotate and turn the lower bevel ring S0. lif'hen the key 140 is moved into engagement with the keyway of a gear normally loose on the sleeve 1112 rotation of the hand wheel 152 will cause the gear 150 to rotate the meshing idler gear 158 and also the gear 100 meshing with this idler and secured to a screwtlireaded shaft 102 which is threaded through a nut 104 secured to the central portion of a cross bar 100. is shown in Fig. 2, the bar 100 is attached to the forward ends of a pair of slidable rods 108 and 17 0 and the rear ends of these rods are pivotally attached to links 172 and 173ircspcctiif'ely which in turn are pivotally attached to projections on the lower side of a foot board 17S pivotally attached by a pair of rods to the tabletop 104A. By means of these connections, the foot board may be raised and lowered by turning the handwheel 152. lVhen the key 110 .is

moved into engagement. with the liey'way of a gear 102 normally loose on the sleeve 1112 rotation of the liant vheel 152 will canse the gear 182 to rotate the meshing idler gear 1.8/1 and the gear 180 meshing with this idler and secured to a shaft 188. This latter shaft has secured thereto a bevel gear in mesh with a bevel gear 192 secured to a cross shaft 191 to which is secured a bevel gear 1.90 meshing with a bevel gear 198 secured to a longitudinal shaft 200. Secured to the inward ends of the shafts 18S and 200 are bevel 'gears 202 and 20-1 respectively which mesh with bevel `gears 200 and 208 screwthreadedly mounted on threaded shafts 210 and 212 which at their upper ends carry a kidney rest 2111 positioned above substr-nn tially the middle portion of the table top 10d- By means of the connections just described, the kidney rest may be raised and lowered by turning the handwheel 152. The kidney rest does not need to be adjusted as often as the footboard and the tabletop and.. hence, the followingl arrangement may be conveniently adopted. The end of the rod 150 is provided with a head 151 which is slidable in a sleeve member 153 secured upon the sleeve 142. The sleeve member contains two slots 155 and 157 in which a pin 159 secured to the head 151 is adapted to slide. .Frictionally mounted on the sleeve member 153 is a .ring 101 having slots 1053 and 105 adapted to register with the slots 155 and 157 respectively. As will be seen from Fig. 8, the slee-ve member 153 carries a pin 10T extendingl into an arcuate slot 109 in the ring 101. ldlhen the slots 101 and 105 register respectively with the slots and 157, the pin 159 can move in these slots so that the key 140 may be engaged with any one of the `gears 140, 150, and 182. Viflhen the ring 101 turned from this position, the pin 107 can be moved only to the end of thisI ring so that the key may be moved quickly between the gears 140 and 156 Without liability of being pushed beyond the gear 156 in thel direction of the gear 182. The shaft 44 previously referred to is secured by a coupling 213 to al telescopic shaft section 215 which is connected by a coupling 216 with the shaft- 218 rotatably mounted in a projection 220 extending down from the tabletop as shown in Fig. 7. Secured to the shaft 218 is a gear 222 meshing with a gear 224 loose on a shaft 226 rotatably mounted in the projection 220 and a projection 228.V

The gear 224 meshes with a. gear 230 loose on a sleeve 232 rotatably mounted in the projections 220 and 228. rFhe gear 230 has an internal keyway adapted to be engaged by a key 234 having beveled corners. The key 234 is normally held outwardly by a leaf sprinO 236 and is attached to the end of a rod 238. Keyed on the outer end of the sleeve 232 is a hand wheel 240 by means of which this sleeve may be rotated. The hub of the wheel 240 is provided with a. recess containing a spring-pressed ball 242 adapted to engage in any one cf a number of notches in the rod 238 and hence serve as a stop to hold the rod in desired position when it is slid in or out. When the key 234 is moved into engagement with the keyway of the gear 230 and the handwheel is turned, the shaft section 215 and shaft 44 will be rotated and the tabletop moved up or down according to theI direction in which t-he handwheel is rotated. l/Vhen the key 234 is in engagement with the keyway of a gear 244 as shown in Fig. 7, rotation of the handwheel 24() Will cause the gear 244 to rotate a meshing gear 246 secured to the shaft 226 to which is secured a gear 248 meshing with a. gear 250 secured to the outer end of the shaft 100 which is mounted for rotation in the projection 220 and is placed against the end of the sleeve 232. l/V hen the shaft 10() is thus rotated, the upper beveled ring 92 will be turned. VVhe-n the key 234 is moved into engagement with the keyway in a gear 252 rotation of the handwheel 24 will cause rotation of this gear. By referring to Fig. 2, it will be seen that the gear 252 meshes with a gear 254 which in turn meshes with a gear 256 and that the latter gear meshes with a gear 258 which is secured to a shaft 260. A bevel gear 262 secured to the shaft- 260 as shown in Fig. 1 meshes with a bevel gear 264 which is interiorly threaded to receive a screw-threaded rod 266 which at. its upper end is pivotally attached to :a head rest 268 pivoted to the tabletop at 270. By means o-f the. connections just described, the head rest 268 maybe adjusted up or down by turning the handwheel 240 in the propel` direction.

The operation and advantages of my invention have been fully set forth in the previous detailed description. It will be obvious from an inspection of Figs. 4 and 5, that the tabletop 104 may be given the desired inclination in any direction including a combined longitudinal and transverse inclination by properly turning wedgeshaped rings and 92.

The table top 104 is preferably provided with means for securing the legs of the patient and suitable means for this purpose is shown in Figs. 1, 2, and 13. A pair of hollow blocks 272 is secured to the lower surface of the table top toward the rear end thereof. Rods 274 are held adjustably in these blocks by pincher plates 276 in order that the rods may be raised and lowered. Straps 278 are passed around the legs of the patient and secured to the upper ends of the rods 274. As shown in Fig. 13, ratchet wheels 280 are keyed on the rods 274. Springpressed detente 282 pivoted to the blocks.

272 normally engage the ratchet wheels and prevent rotation thereof in one direction. The ratchet wheels are so arranged that when the legs of the patient are secured to the straps, the legs cannot be brought closer together but they can be separated still further on account of the ratchetl wheels being permitted to rotate in the proper direction for this purpose. It Will be understood that for certain operations it is necessary that the legs be held separated at least a certain amount. In such case, if there is a tendency to separate them still further, this action is permitted by the rotation of the ratchet wheels.

I claim:

1. An operating table comprising a table top, a base, tWo juxtaposed wedge-shaped members interposed between said base and tabletop, and means whereby said members may be independently turned to give said tabletop various inclinations in any direction through an entire circumference of 3600.

2. An operating table comprising a tabletop, a base, two juxtaposed wedge-shaped members interposed between said base and tabletop, a hand wheel, connections between said hand wheel and one of said members whereby the latter may be turned, a second hand wheel, and connections between sai-d second handwheel and the other of said members whereby the latter= may be turned.

3. An operating table comprising a table top, a base, a table raising and lowering device, a foot board, a head rest, a kidney rest, two juxtaposed Wedgeshaped members interposed between said base and tabletop, hand operable means, and means associated with said hand operable means whereby movement thereof may be caused to selectively operate said foot board, head rest, kidney rest, Wedgeshaped members, and table rais-y ing and lowering device.

4. An operating table comprising a table top, a base, a table raising and lowering de- Slt) vice, a toot board, a head rest, a kidney rest, two juxtaposed wedgeshaped members interposed between said base and tabletop, a hand wheel, means associated with said hand wheel whereby turning movement thereof may be caused to selectively operate said foot board, kidney rest, and one ot said wedgeshaped members, a second hand wheel, and

means associated with said second handwheel whereby taining movement thereof may be caused to selectively operate said head rest, table raising and lowering device, and the other of said wedgeshaped members.

5. An operating table comprising a table top, a base, a cylindrical member vertically disposed above said base, two juxtaposed wedgeshaped rings rotatably interposed between said cylindrical member and tabletop, a universal joint connecting' said tabletop and cylindrical member, and means tor independently turning said rings to tilt said tabletop.

G. An operating table comprising a tabletop, a base, a cylindrical member vertically disposed above said base, means for raising and lowering said cylindrical member, two juxtaposed wedgeshaped rings rotatably interposed between said cylindrical member and table top, a universal joint extending through said rings and connecting said tabletop and cylindrical member, and means tor independent-ly turning said rings to tilt said table top.

7. An operating table comprising a table top, a base, a cylindrical member vertically disposed above said base, a screw threaded rod adapted to raise and lower said cylindrical member, a foot board, a head rest, a kidney rest, two juxtaposed wedgeshaped rings rotatably interposed between said cylindrical member' and tabletop, a universal joint extending` through said rings and connecting said tabletop and cylindrical member, two hand wheels, and means associated with said hand wheels whereby their turning movement may be caused to selectively operate said screwthreaded rod, toot board, head rest, kidney rest, and wedgesbaped rings.

8. An operating table con'iprising a table top, a base, a tube secured to said base and extending upwardly therefrom, a cjf'lindrical member slidably mounted on said tube, a second tube secured to said base and extending up inside said cylindrical member, a nut secured to said last mentioned tube, a vertical screw-thi' laded rod engaging the threads ot said nut and rotatably mounted with relation to said cylindrical member, two juxtaposed wedge-shaped rings rotatably interposed between said cylindrical member and tabletop, a universal joint extending thi ough said rings and connecting said tabletop and cylindrical member, a hand wheel, means associated with said hand wheel whereby turning` movement thereof may be caused to selectively operate said screw-threaded rod and one of said rings, a second hand wheel, and means associated therewith for ope1ating the other of said rings.

In testimony whereof I hereunto altix my signature.

ANTOINE A. LAURENT. 

